US4643304A - Tape cartridge with extending reference surfaces - Google Patents

Tape cartridge with extending reference surfaces Download PDF

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Publication number
US4643304A
US4643304A US06/669,844 US66984484A US4643304A US 4643304 A US4643304 A US 4643304A US 66984484 A US66984484 A US 66984484A US 4643304 A US4643304 A US 4643304A
Authority
US
United States
Prior art keywords
case body
tape
lid
tape cartridge
front lid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/669,844
Other languages
English (en)
Inventor
Takashi Sumida
Shigeo Sasaki
Takao Ketori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP21300383A external-priority patent/JPS60106090A/ja
Priority claimed from JP59040781A external-priority patent/JPS60185278A/ja
Application filed by Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Assigned to HITACHI MAXELL, LTD. reassignment HITACHI MAXELL, LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KETORI, TAKAO, SASAKI, SHIGEO, SUMIDA, TAKASHI
Application granted granted Critical
Publication of US4643304A publication Critical patent/US4643304A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
    • G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores

Definitions

  • the present invention relates to a tape cartridge, and more particularly to a tape cartridge of the type having a lid member on the front portion of the cartridge to protect the tape of the cartridge.
  • a recording tape cartridge such as a video tape cartridge or an audio tape cartridge of the digital type is provided with a movable lid on the front portion of the cartridge case and is adapted to be mounted on a recording/reproducing apparatus (referred to as a tape player hereinafter) in such a manner that the video tape cartridge is manually inserted in the housing of the tape player in a horizontally laid attitude and is moved downward toward the loading postion with the lid of the tape cartridge opened during the downward movement.
  • a tape player recording/reproducing apparatus
  • the tape cartridge must be precisely positioned at the end of the horizontal movement of the manual insertion of the cartridge.
  • a positioning member in the tape player which is adapted to contact a part of the front end face of the case of the tape cartridge through an opening defined on the front plate of the lid.
  • the contact area of the positioning member of the tape player it is preferred to make the contact area of the positioning member of the tape player as large as possible so as to ensure the positioning of the cartridge.
  • a large opening on the front lid decrease the mechanical strength of the front lid.
  • the conventional positioning member of the tape player is adapted to engage the front portion of the tape cartridge near the recording tape, the tape may be easily harmed due to undesired contact with the enlarged positioning member. In view of the condition as described above, the opening of the lid in fact can not be expanded.
  • the conventional positioning mechanism uses such a construction as to provide the opening in the front lid of the cartridge for receiving the positioning member, there are many restrictions and therefore the conventional positioning mechanism used in the tape cartridge is not able to comply with the requirement of the variation of the tape cartridges.
  • An essential object of the present invention is to provide a tape cartridge which can be readily positioned at the correct position of the tape player
  • Another object of the present invention is to provide a tape cartridge which ensures an engagement of the part of the tape cartridge with the positioning member of the tape player so as to assure correct positioning of the tape cartridge on the tape player without lowering the mechanical strength of the front lid member of the tape cartridge, preventing undesired contact of the positioning member of the tape player with the tape.
  • a tape cartridge characterized in that a reference surface is provided by the end face formed on the side walls of the csae body, the end face being directed in the front direction so as to set the case body in a position in relation to the front and rear directions of a tape player.
  • FIG. 1 is a perspective outside view showing one embodiment of a tape cartridge according to the present invention with a front lid closed
  • FIG. 2 is a perspective outside view of the the tape cartridge shown in FIG. 1 with the front lid opened,
  • FIG. 3 is a partial side view of the tape cartridge shown in FIG. 1,
  • FIG. 4 is a top plan view showing another embodiment of the tape cartridge according to the present invention.
  • FIG. 5 is a perspective view of the tape cartridge shown in FIG. 4,
  • FIG. 6 is a partial perspective view of the front portion of the case body used in a further embodiment of the present invention.
  • FIG. 7 is an exploded view showing the front side corner portion of the case body shown in FIG. 6 with the part of the front lid shown.
  • FIG. 8 is a partial plan view showing the case body shown in FIG. 6,
  • FIG. 9 is a partial cross sectional view showing the part of the tape cartridge according to the present invention with the front lid fully opened
  • FIG. 10 is a cross sectional view taken along the lines A--A in FIG. 8,
  • FIG. 11 is a partial cross sectional view of the tape cartridge with the front lid drawn out
  • FIG. 12 is a partial cross sectional view of the tape cartridge with the front lid retracted
  • FIG. 13 is a partial cross sectional view of the front portion of the tape cartridge with the front lid drawn out before being opened
  • FIG. 14 is a partial cross sectional view of the front portion of the tape cartridge with the front lid drawn out and opened,
  • FIG. 15 is a partial cross sectional view of the essential portion of the hub used in the tape cartridge
  • FIG. 16 is a partial cross sectional view showing the front portion of the tape cartridge
  • FIG. 17 is a partial cross sectional view of the tape cartridge with the front lid drawn out but in the closed position
  • FIG. 18 is a partial cross sectional view of the tape cartridge with the front lid opened
  • FIG. 19 is a partial plan view of the tape cartridge
  • FIG. 20 is an exploded view of an essential portion of the front lid used in the various embodiments of the present invention.
  • FIG. 21 is an enlarged exploded view of the essential portion shown in FIG. 20,
  • FIG. 22 is an exploded view of an essential portion of the end portion of the front lid used in the various embodiments of the present invention.
  • FIG. 23 is a partial cross sectional view showing one way mounting of the front lid to the case body.
  • a case body 1 of the tape cartridge has a pair of drive shaft insertion holes 2 vertically penetrating through the case body 1 on the central portion of the case body 1 and a pair of rotatable hubs 4 on which a recording tape 3 is wound.
  • the recording tape 3 is released from one of the hubs towards the front portion of the case body 1 and the released tape can be taken up on the other hub.
  • the front portion of the case body 1 is fully opened between the left end and the right end and it is expected that the recording tape 3 can be extracted frontwardly from the front opening of the case body 1 when the tape cartridge is mounted on the tape player.
  • the present invention can be applied to so called a Philips type cartridge.
  • a front lid 5 is movably mounted on the front portion of the case body 1 so as to be moved between the open position and the closed position.
  • the front lid 5 comprises a generally flat front plate 6 for closing the front opening of the case body 1 over all between the left end and the right end and a pair of connecting arms 7 projected rearwardly from both side ends of the case body 1.
  • the front lid 5 is formed by plastic molding.
  • the connecting arms 7 are rotatably and detachably coupled on recessed side walls 8a of the side walls 8 through supporting shafts 9 so that the front lid 5 can be rotated in both upward and downward direction around the supporting shafts 9 for opening.
  • the recessed side walls 8a are formed on the front end portion of the side walls 8 and each have a generally flat surface but recessed inwardly from the outer face of the side wall 8 through a stepped front end wall 10.
  • the connecting arms 7 of the front lid 5 are respectively positioned generally parallel along the recessed side walls 8a and rotatably supported as described above.
  • the front lid 5 is normally exerted toward the closed position by a spring (not shown) for closing the front opening of the case body 1 by the front plate 6.
  • Each of the stepped front end walls 10 is a vertical wall having a generally flat face directed toward the front direction at the outermost part of the case body 1 in the lateral direction or left and right directions.
  • the face of each of the stepped front end walls 10 is perpendicular to the direction of the insertion of the case body 1 into the tape player.
  • the recessed side walls 8a extend parallel to each other or may be slightly tapered such that the distance between both recessed side walls is narrower in the front portion than the distance at the rear portion.
  • the front lid 5 is so arranged that both lateral ends 6a of the front plate 6 are flush with both side walls 8 respectively without being projected outwardly from the side walls 8. Furthermore, since the case body 1 is used with the top and bottom reversed, it is necessary that the front lid 5 can be opened in both the upward and downward directions from the closed position. Therefore, the connecting arms 7 are formed with a width narrower than the width of the front plate 6 and are projected rearwardly from the central portion relative to the vertical direction of the case body 1. When the front lid 5 is in the closed position as shown in FIGS. 1 or 3 (by real line), there are defined spaces g between the top edge of the case body 1 and the top edge of the connecting arm 7 and between the bottom edge of the case body 1 and and the bottom edge of the connecting arm 7.
  • the stepped front end wall 10 serves as the reference surface of the tape cartridge for positioning in the tape player as hereinafter explained.
  • the positioning member 11 is secured in the tape player in position for determining the correct position of the tape cartridge.
  • the case body 1 of the tape cartridge of which front lid 5 is in the closed position with the horizontally laid attitude into the tape player, advancing horizontally the case body 1 is moved into the interior of the tape player with the side wall 8 opposing the positioning member 11 and without any interference between the positioning member 11 and the front lid 5.
  • the positioning member 11 moves relative to the case body 1, the positioning member 11 moves along one of the upper or lower spaces g (normally the lower space g) and abut onto the front surface of the stepped front end wall 10 as shown in FIG. 3 so that the case body 1 can be positioned at the correct position with respect to the front and rear directions.
  • the tape cartridge is reversed, the same operation can be made.
  • the positioning member 11 may be provided only on one side.
  • the positioning members are readily guided by the tapered walls without causing the positioning member to be engaged with the front portion of the case body, thereby facilitating the insertion of the case body.
  • FIGS. 4 and 5 show the second embodiment of the tape cartridge according to the present invention in which the side walls 8 are formed having a uniform thickness without recessed side walls 8a, the front portions thereof project beyond the support shafts 9 of the front lid 5 and the connecting arms 7 are rotatably engaged with both inner faces of the side walls 8.
  • front end faces 12 of the both side walls 8 are formed as vertical flat planes serving as the reference planes to which the positioning member or members 11 of the tape player can abut for positioning the tape cartridge.
  • the positioning member of the tape player can abut the reference face 12 without being interfered with by the support shaft 9 of the front lid 5.
  • the positioning member of the tape player can abut the entire width of the reference face 12, whereby when the tape cartridge is inserted into the inside of the housing of the tape player, it will prevent the tape cartridge from erronously passing over the positioning member.
  • the positioning member is adapted to contact the central portion of the reference face 12 in the vertical direction of the case body, when the top and bottom of the tape cartridge is reversed, the positioning member of the tape player can always abut the same portion of the reference face 12, so that positioning of the tape cartridge can be assured with a high degree of accuracy compared to such tape cartridge in which the portion of the reference face 12 to which the positioning member abut changes when the top and bottom of the tape cartridge is reversed.
  • FIGS. 6 through 12 show a third embodiment of the tape cartridge according to the present invention in which the arrangement of support for the connecting arms 7 of the the front lid 5 is further improved from the second embodiment.
  • the reference faces for positioning are provided by the flat vertical front end faces 12 of the side walls.
  • a front lid 5 is movably mounted on the front portion of the case body 1 so as to be moved between the opened position and the closed position.
  • the front lid 5 comprises a generally flat front plate 6 for closing the front opening of the case body 1 over all between the left end and the right end and a pair of connecting arms 7 projected rearwardly from the both side ends of the case body 1.
  • the front lid 5 is formed by a plastic molding.
  • the connecting arms 7 are rotatably and detachably coupled on recessed side walls 8a of the side walls 8 through supporting shafts 9 so that the front lid 5 can be rotated in both upward and downward directions around the supporting shafts 9 for opening.
  • a pair of lid supporting members 16 are mounted in both side end portions of the front portion of the case body 1 so as to slide along the inner faces of the side walls 8.
  • spring means for exerting the lid supporting members 16 in the backward direction of the case body 1.
  • the spring means is arranged in such a manner that a pulling coil spring 19 is suspended between the rear end of the lid supporting member 16 and an engaging member (not shown) projected on the rear portion of the bottom wall 1a of the case body 1.
  • each of the lid support members 16 escapes toward the rearmost end portion by the coil spring 19 and the front lid 5 both ends of which are suspended by the lid supporting members 16 is fitted in the opening between the top wall and the bottom wall of the case body 1 with the front plate 6 vertically standing as shown in FIG. 8 so as to close the opening of the front portion of the case body 1.
  • the movement of the support members 16 and the front lid 5 in the backward direction is limited by receiving the rear end of the connecting arms 7 by stoppers 21 provided on both front corner portions of the case body 1.
  • the end of the movement of the front lid may be limited in such a manner that the outer surface of the front plate 6 is flush with the front edges of the top wall and the bottom wall of the case body 1.
  • the front lid 5 including the front plate 6 and the connecting arms 7 is situated inside the case body 1, so that the front lid 5 is prevented from being manually drawn out of the case body 1. It is also appreciated that the front portion of the case body 1 can not be opened without drawing the front lid out of the case body 1 since the top edge and the bottom edge of the case body 1 closely oppose the edges of the front plate 6. Thus, the recording tape can be well protected by the front lid 5.
  • the frontward limit of the movement of the front lid 5 is so set that the connecting arms 7 are not fully drawn out of the case body 1. Hence, the front lid 5 can be automatically drawn back to the rearward limit position if the force applied to the front lid 5 is released.
  • the front lid 5 can be opened in the upward direction despite that the top and the bottom of the case body is reversed.
  • a pair of cut portions 26 so as to oppose each other on both lateral end portions of the front end of the top wall 1b and the bottom wall 1a of the case body 1 as shown in FIGS. 6 through 9, and thick chips 27 are formed as shown in FIGS. 1 and 10 on the positions opposing the cut portion 26 on the intermediate portions of each of the inner faces of the front plate 6.
  • the operating member 29 can advance further into the inside of the cut portion 26, the slated surface 29a of the operating member 29 slidably engages with guide surface 26a, thereby the causing the case body 1 to move in the backward direction.
  • the front lid 5 can be drawn up to the front limit position from the case body 1 with the top end of the operating member 29 engaged with the engaging member 27 of the front plate 6 whereby the operating member 29 can be further pushed upwardly so that the front lid 5 can be upwardly opened angle of 90 as shown in the phantom lines in FIG. 14 so as to enable the recording tape 3 to be drawn out from the front opening of the case body 1.
  • each of the additional recesses on the top wall 1b oppose the corresponding additional recesses of the bottom wall each opposing so that each of the connecting arms 7 can be received in the additional recesses 28 when the front lid is in the open end for avoiding undesired projection of the front plate from the front portion of the case body 1 as shown in FIG. 5.
  • connection arms 7 can be received in the additional recess 28 as described above, disengagement of the supporting shafts 9 from the holes 20 can be prevented in spite of an undesired application of force to the front plate 6 in the lateral directions due to the engagement of the front lid 5 and the operating member 29 when the front lid 5 is opening or fully opened.
  • the supporting holes 20 can be formed in a vertical elongated shape so that the supporting shafts 9 can be moved in the holes 20 for preventing undesired projection of the front lid 5 from the front end portion of the case body when mounted in the tape player as shown in FIG. 9.
  • front end portion of the case body used herein includes the end face 10 or the front face 12 without the end face 10 relating to the side walls 8.
  • the tape cartridge according to the present invention is not required to define a recess on the front lid for allowing insertion of the positioning member of the tape player by providing at least one reference wall on the front portion of the lateral outermost end portion of the case body for engagement of the positioning member of the tape player. Therefore, the mechanical strength of the front lid can be assured and undesired access of the positioning member of the tape player to the recording tape can be prevented.
  • the front plate 6 of the front lid 5 is also made relatively thin. Accordingly, as shown in FIG. 6, there may be formed a pair of ribs 30 between the engaging members 27 in the vertical ends of the inside of the front lid 5 for reinforcement of the front plate 6.
  • the ribs 30 can serve to prevent undesired contact of foreign matter with the recording tape.
  • the present invention is fully described with reference to the example of a digital audio recording tape cartrige, the present invention can be applied to a video tape cartridge or the like.

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  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
US06/669,844 1983-11-12 1984-11-09 Tape cartridge with extending reference surfaces Expired - Fee Related US4643304A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP58-213003 1983-11-12
JP21300383A JPS60106090A (ja) 1983-11-12 1983-11-12 テ−プカ−トリツジ
JP59040781A JPS60185278A (ja) 1984-03-02 1984-03-02 テ−プカ−トリツジ
JP59-040781 1984-03-02

Publications (1)

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US4643304A true US4643304A (en) 1987-02-17

Family

ID=26380298

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/669,844 Expired - Fee Related US4643304A (en) 1983-11-12 1984-11-09 Tape cartridge with extending reference surfaces

Country Status (3)

Country Link
US (1) US4643304A (de)
EP (1) EP0142807B1 (de)
DE (1) DE3483414D1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740856A (en) * 1984-01-25 1988-04-26 Matsushita Electric Industrial Co., Ltd. Tape cassette and cassette recorder using the same
US4768122A (en) * 1984-07-23 1988-08-30 Sony Corporation Moveable lid for tape cassette
US4858848A (en) * 1987-06-18 1989-08-22 Sony Corporation Magnetic tape cassette
US4933796A (en) * 1987-06-18 1990-06-12 Sony Corporation Magnetic tape cassette
US5173830A (en) * 1989-12-06 1992-12-22 Sony Corporation Tape cassette with tapered self-aligning reel hubs
US5969913A (en) * 1998-06-11 1999-10-19 Dimation Corp Data storage tape cartridge with misinsertion notch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140272U (ja) * 1984-02-22 1985-09-17 ソニー株式会社 テ−プカセツト
EP1285738A3 (de) * 1998-06-12 2003-10-08 Fuji Photo Film Co., Ltd. Spritzgiessform

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363456A (en) * 1979-11-15 1982-12-14 Hitachi Maxell, Ltd. Magnetic recording tape cassette
US4389690A (en) * 1980-02-08 1983-06-21 Fuji Photo Film Co., Ltd. Magnetic tape cassette including a locking mechanism
US4422599A (en) * 1981-02-09 1983-12-27 Tdk Electronics Co., Ltd. Magnetic tape cassette
US4470560A (en) * 1981-09-03 1984-09-11 Sony Corporation Cassette adapter
US4485990A (en) * 1982-03-10 1984-12-04 Hitachi Maxell, Ltd. Recording tape cassette
US4485988A (en) * 1981-11-04 1984-12-04 Matsushita Electric Industrial Co., Ltd. Tape cassette
US4496119A (en) * 1983-02-09 1985-01-29 U.S. Philips Corporation Magnetic-tape cassette with simplified reel brake
US4519521A (en) * 1983-09-06 1985-05-28 Matsushita Electric Industrial Co., Ltd. Tape cassette
US4524926A (en) * 1982-04-16 1985-06-25 Sony Corporation Cassette and cassette adapter for use therewith

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134272Y2 (de) * 1971-04-22 1976-08-24
JPS5256815Y2 (de) * 1972-11-13 1977-12-22
US4372504A (en) * 1979-10-26 1983-02-08 Olympus Optical Co., Ltd. Magnetic record tape protective device for a tape cassette
JPS57176574A (en) * 1981-04-20 1982-10-29 Sony Corp Tape cassette
DE3362229D1 (en) * 1982-03-10 1986-04-03 Hitachi Maxell Recording tape cartridge

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363456A (en) * 1979-11-15 1982-12-14 Hitachi Maxell, Ltd. Magnetic recording tape cassette
US4389690A (en) * 1980-02-08 1983-06-21 Fuji Photo Film Co., Ltd. Magnetic tape cassette including a locking mechanism
US4422599A (en) * 1981-02-09 1983-12-27 Tdk Electronics Co., Ltd. Magnetic tape cassette
US4470560A (en) * 1981-09-03 1984-09-11 Sony Corporation Cassette adapter
US4485988A (en) * 1981-11-04 1984-12-04 Matsushita Electric Industrial Co., Ltd. Tape cassette
US4485990A (en) * 1982-03-10 1984-12-04 Hitachi Maxell, Ltd. Recording tape cassette
US4524926A (en) * 1982-04-16 1985-06-25 Sony Corporation Cassette and cassette adapter for use therewith
US4496119A (en) * 1983-02-09 1985-01-29 U.S. Philips Corporation Magnetic-tape cassette with simplified reel brake
US4519521A (en) * 1983-09-06 1985-05-28 Matsushita Electric Industrial Co., Ltd. Tape cassette

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740856A (en) * 1984-01-25 1988-04-26 Matsushita Electric Industrial Co., Ltd. Tape cassette and cassette recorder using the same
US4768122A (en) * 1984-07-23 1988-08-30 Sony Corporation Moveable lid for tape cassette
US4858848A (en) * 1987-06-18 1989-08-22 Sony Corporation Magnetic tape cassette
US4933796A (en) * 1987-06-18 1990-06-12 Sony Corporation Magnetic tape cassette
US5173830A (en) * 1989-12-06 1992-12-22 Sony Corporation Tape cassette with tapered self-aligning reel hubs
US5969913A (en) * 1998-06-11 1999-10-19 Dimation Corp Data storage tape cartridge with misinsertion notch

Also Published As

Publication number Publication date
EP0142807A3 (en) 1987-01-07
EP0142807B1 (de) 1990-10-17
EP0142807A2 (de) 1985-05-29
DE3483414D1 (de) 1990-11-22

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Owner name: HITACHI MAXELL, LTD. 1-1-88, USHITORA, IBARAKI-SHI

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